Add initial support for provisioning and removing services, getting service data
Change-Id: Ie49206d788a202e70a8d64f083c3f85b92ced8fb
diff --git a/internal/clients/onos.go b/internal/clients/onos.go
new file mode 100644
index 0000000..2de584c
--- /dev/null
+++ b/internal/clients/onos.go
@@ -0,0 +1,254 @@
+/*
+* Copyright 2022-present Open Networking Foundation
+
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+
+* http://www.apache.org/licenses/LICENSE-2.0
+
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+ */
+
+package clients
+
+import (
+ "context"
+ "encoding/json"
+ "fmt"
+ "io"
+ "net/http"
+ "time"
+
+ "github.com/opencord/voltha-lib-go/v7/pkg/log"
+)
+
+const (
+ onosHttpRequestTimeout = time.Second * 10
+ onosBackoffInterval = time.Second * 10
+)
+
+type OnosClient struct {
+ httpClient *http.Client
+ endpoint string
+ username string
+ password string
+}
+
+type RestResponse struct {
+ Body string
+ Code int
+}
+
+// Creates a new olt app client
+func NewOnosClient(endpoint string, user string, pass string) *OnosClient {
+ return &OnosClient{
+ httpClient: &http.Client{
+ Timeout: onosHttpRequestTimeout,
+ },
+ endpoint: endpoint,
+ username: user,
+ password: pass,
+ }
+}
+
+func (c *OnosClient) CheckConnection(ctx context.Context) error {
+ logger.Debugw(ctx, "checking-connection-to-onos-olt-app-api", log.Fields{"endpoint": c.endpoint})
+
+ for {
+ if resp, err := c.GetStatus(); err == nil {
+ logger.Debug(ctx, "onos-olt-app-api-reachable")
+ break
+ } else {
+ logger.Warnw(ctx, "onos-olt-app-api-not-ready", log.Fields{
+ "err": err,
+ "response": resp,
+ })
+ }
+
+ //Wait a bit before trying again
+ select {
+ case <-ctx.Done():
+ return fmt.Errorf("onos-olt-app-connection-stopped-due-to-context-done")
+ case <-time.After(onosBackoffInterval):
+ continue
+ }
+ }
+
+ return nil
+}
+
+func (c *OnosClient) makeRequest(method string, url string) (RestResponse, error) {
+ result := RestResponse{Code: 0}
+
+ req, err := http.NewRequest(method, url, nil)
+ if err != nil {
+ return result, fmt.Errorf("cannot-create-request: %s", err)
+ }
+
+ req.SetBasicAuth(c.username, c.password)
+
+ resp, err := c.httpClient.Do(req)
+ if err != nil {
+ return result, fmt.Errorf("cannot-get-response: %s", err)
+ }
+ defer resp.Body.Close()
+
+ buffer, err := io.ReadAll(resp.Body)
+ if err != nil {
+ return result, fmt.Errorf("error-while-reading-response-body: %s", err)
+ }
+
+ result.Body = string(buffer)
+ result.Code = resp.StatusCode
+
+ if result.Code != http.StatusOK {
+ return result, fmt.Errorf("status-code-not-ok: %s %s %d", method, url, result.Code)
+ }
+
+ return result, nil
+}
+
+///////////////////////////////////////////////////////////////////////// ONOS OLT app APIs
+
+func (c *OnosClient) GetStatus() (RestResponse, error) {
+ method := http.MethodGet
+ url := fmt.Sprintf("http://%s/onos/olt/oltapp/status", c.endpoint)
+
+ return c.makeRequest(method, url)
+}
+
+func (c *OnosClient) ProvisionService(portName string, sTag string, cTag string, technologyProfileId string) (RestResponse, error) {
+ method := http.MethodPost
+ url := fmt.Sprintf("http://%s/onos/olt/oltapp/services/%s/%s/%s/%s", c.endpoint, portName, sTag, cTag, technologyProfileId)
+
+ return c.makeRequest(method, url)
+}
+
+func (c *OnosClient) RemoveService(portName string, sTag string, cTag string, trafficProfileId string) (RestResponse, error) {
+ method := http.MethodDelete
+ url := fmt.Sprintf("http://%s/onos/olt/oltapp/services/%s/%s/%s/%s", c.endpoint, portName, sTag, cTag, trafficProfileId)
+
+ return c.makeRequest(method, url)
+}
+
+type ProgrammedSubscriber struct {
+ Location string `json:"location"`
+ TagInfo SadisUniTag `json:"tagInfo"`
+}
+
+type SadisUniTag struct {
+ UniTagMatch int `json:"uniTagMatch,omitempty"`
+ PonCTag int `json:"ponCTag,omitempty"`
+ PonSTag int `json:"ponSTag,omitempty"`
+ TechnologyProfileID int `json:"technologyProfileId,omitempty"`
+ UpstreamBandwidthProfile string `json:"upstreamBandwidthProfile,omitempty"`
+ UpstreamOltBandwidthProfile string `json:"upstreamOltBandwidthProfile,omitempty"`
+ DownstreamBandwidthProfile string `json:"downstreamBandwidthProfile,omitempty"`
+ DownstreamOltBandwidthProfile string `json:"downstreamOltBandwidthProfile,omitempty"`
+ IsDhcpRequired bool `json:"isDhcpRequired,omitempty"`
+ IsIgmpRequired bool `json:"isIgmpRequired,omitempty"`
+ IsPPPoERequired bool `json:"isPppoeRequired,omitempty"`
+ ConfiguredMacAddress string `json:"configuredMacAddress,omitempty"`
+ EnableMacLearning bool `json:"enableMacLearning,omitempty"`
+ UsPonCTagPriority int `json:"usPonCTagPriority,omitempty"`
+ UsPonSTagPriority int `json:"usPonSTagPriority,omitempty"`
+ DsPonCTagPriority int `json:"dsPonCTagPriority,omitempty"`
+ DsPonSTagPriority int `json:"dsPonSTagPriority,omitempty"`
+ ServiceName string `json:"serviceName,omitempty"`
+}
+
+func (c *OnosClient) GetProgrammedSubscribers() ([]ProgrammedSubscriber, error) {
+ method := http.MethodGet
+ url := fmt.Sprintf("http://%s/onos/olt/oltapp/programmed-subscribers", c.endpoint)
+
+ response, err := c.makeRequest(method, url)
+ if err != nil {
+ return nil, err
+ }
+
+ var subscribers struct {
+ Entries []ProgrammedSubscriber `json:"entries"`
+ }
+ err = json.Unmarshal([]byte(response.Body), &subscribers)
+ if err != nil {
+ return nil, err
+ }
+
+ return subscribers.Entries, nil
+}
+
+///////////////////////////////////////////////////////////////////////// ONOS Core APIs
+
+type OnosPort struct {
+ Element string `json:"element"` //Device ID
+ Port string `json:"port"` //Port number
+ IsEnabled bool `json:"isEnabled"`
+ Type string `json:"type"`
+ PortSpeed uint `json:"portSpeed"`
+ Annotations map[string]string `json:"annotations"`
+}
+
+func (c *OnosClient) GetPorts() ([]OnosPort, error) {
+ method := http.MethodGet
+ url := fmt.Sprintf("http://%s/onos/v1/devices/ports", c.endpoint)
+
+ response, err := c.makeRequest(method, url)
+ if err != nil {
+ return nil, err
+ }
+
+ var ports struct {
+ Ports []OnosPort `json:"ports"`
+ }
+ err = json.Unmarshal([]byte(response.Body), &ports)
+ if err != nil {
+ return nil, err
+ }
+
+ return ports.Ports, nil
+}
+
+///////////////////////////////////////////////////////////////////////// ONOS SADIS APIs
+
+type BandwidthProfile struct {
+ Id string `json:"id"`
+ Cir int64 `json:"cir"`
+ Cbs string `json:"cbs"`
+ Air int64 `json:"air"`
+ Gir int64 `json:"gir"`
+ Eir int64 `json:"eir"`
+ Ebs string `json:"ebs"`
+ Pir int64 `json:"pir"`
+ Pbs string `json:"pbs"`
+}
+
+func (c *OnosClient) GetBandwidthProfile(id string) (*BandwidthProfile, error) {
+ method := http.MethodGet
+ url := fmt.Sprintf("http://%s/onos/sadis/bandwidthprofile/%s", c.endpoint, id)
+
+ response, err := c.makeRequest(method, url)
+ if err != nil {
+ return nil, err
+ }
+
+ var bwProfiles struct {
+ Entry []BandwidthProfile `json:"entry"`
+ }
+ err = json.Unmarshal([]byte(response.Body), &bwProfiles)
+ if err != nil {
+ return nil, err
+ }
+
+ //The response has a list, but always returns one item
+ //Verify this is correct and return it
+ if len(bwProfiles.Entry) != 1 {
+ return nil, fmt.Errorf("unexpected-number-of-bw-profile-entries: id=%s len=%d", id, len(bwProfiles.Entry))
+ }
+
+ return &bwProfiles.Entry[0], nil
+}